13020139331 has 2 divisors, whose sum is σ = 13020139332. Its totient is φ = 13020139330.

The previous prime is 13020139303. The next prime is 13020139337. The reversal of 13020139331 is 13393102031.

It is a strong prime.

It is an emirp because it is prime and its reverse (13393102031) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13020139331 is a prime.

It is a super-2 number, since 2×13020139331² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13020139331.

It is not a weakly prime, because it can be changed into another prime (13020139337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6510069665 + 6510069666.

It is an arithmetic number, because the mean of its divisors is an integer number (6510069666).

Almost surely, 2^13020139331 is an apocalyptic number.

13020139331 is a deficient number, since it is larger than the sum of its proper divisors (1).

13020139331 is an equidigital number, since it uses as much as digits as its factorization.

13020139331 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1458, while the sum is 26.

The spelling of 13020139331 in words is "thirteen billion, twenty million, one hundred thirty-nine thousand, three hundred thirty-one".